Sash-lock.



0. PEARSON L C. E. LINDQUIST.

SASH LOCK.

APPLICATION FILED MAR. 13, 1909.

Patented Nov. 23, 1909.

2 SHBETS-SHEET 1.

0.PEARSON & C. E. LINDQUIST. sAsH LocK.

APPLICATION FILED MAB.. 13,1909. 941,038, Patented Nov. 23, 1909.

2 SHEETS-SHEET 2.

CKE PEARSON AND CARL E. LINDQUIST, OF CHICAGO, ILLINOIS.

SASH-LOCK.

Specification of Letters Patent.

Application filed March 13, 1909.

Patented Nov. 23, 1909.

serial No. 483,204.

T o all whom it may concern.'

Be it known that we, OKE PnAnsoN and CARL E. LiNDQUIs'r, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

This invention relates to improvements in that type of sash-locks to be used for securing the meeting-rails of the upper and lower sashes of a window in locked relation with respect to one another, and is somewhat similar to the sash-lock disclosed in Letters- Patent No. S1t7,600 issued to us on the 19th day of March, 1907; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claime l.

The objects of our invention are substantially the same as set forth in our abovenamed patent, and are as follows: to provide a sash-lock which shall be simple and inexpensive in construction, strong, durable and eiiicient in operation, and so made that it may be easily attached to the sashes or removed therefrom, to furnish a sash-lock which may be used for locking the sashes against their movement when in their normal positions for closing the window or for locking them, so as to permit of a restricted movement of either the upper or lower sashes, or both of them, for the purpose of ventilation, yet which will prevent access to the room through the window of a burglar or marauder.

Various other objects and advantages of the invention will be disclosed in the subjoined description and explanation.

In order to enable others skilled in the art to which our invention pertains, to make and use the same, we will now proceed to describe it, referring to the accompanying drawings, in which- Figure 1 is a plan view of parts of the meeting-rails of the upper and lower sashes of a window, showing our improved sashlock in position thereon with its parts arranged to secure the sashes together yet to permit of a restricted movement thereof; Fig. 2 is a perspective view of a portion of the meeting-rails of the upper and lower sashes and a part of the window-panes therefor, showing the sash-lock in place thereon and illustrating` the said rails connected together by means of a lock at the limit of their restricted movement; Fig. 3 is a detached plan view of the sash-lock, showing` the parts thereof in t-he positions they will occupy when it. is desired to lock the sashes in their normal positions and against movement; Fig. 4 is a sectional view of the engaging block or member for the lockinglever and extensible connection for the two sashes; Fig. 5 is a detached view in elevation of the block or member which carries the locking-lever and to which one end of the extensible connection for the two sashes is pivotally secured, showing said connection in its folded or normal position; Fig. 6 is an outer end view of the engaging block for the locking-lever, showing by full and dotted lines the positions to which the spring-actuated locking-bolt for the extensible connection may be placed in locking and unlocking the same; Fig. 7 is an end view of the lock, showing the locking-lever in engagement with the engaging block and with the parts arranged as shown in Fig. 3; and Fig. 8 is a vertical sectional view through a portion of the locking-lever, showing a spring-actuated catch therefor.

Like numerals of reference, refer to corresponding parts throughout the different views of the drawings.

The reference numeral designates the lower rail of the upper sash and the reference numeral 1G the upper rail of the lower sash, each of which sashes carry panes 17 of glass, as usual. Secured longitudinally on the upper surface of one of the rails, usually the rail l5, at about its middle, is a block 18 which has a flange 19 at the lower portion of its perimeter provided with openings 20 for the reception of screws 21 used for securing the block in position on the rail. This block is provided on its upper surface at one of its ends with a lug 22 and near said lug with an opening or recess 23, the former for engagement with a recess 24 produced in the lower surface of the locking-lever 25 at one of its ends, and the latter for the reception or engagement of the lower end of a bolt 26 which is located in a vertical recess 27 in the lever 25 and a handle 25a on the upper portion thereof near one of its ends, which bolt has a reduced portion 28 between its ends around which is coiled a spring 29 which rests at one of its ends against the lower portion of the bolt 26 and at its other end against the top of the recess 27 in the handle of the lever. The upper end of the reduced portion 28 of the bolt is provided with a head 30 by means of which the lower portion of the bolt may be disengaged from the opening or recess 23 in the block 18 to the upper surface of which the lever is pivotally secured at its end opposite the end thereof having the bolt 26 and recess 24 therein. r1he lever 25 has near its pivoted end a reduced portion 31 which forms a slightly dovetailed shoulder 32 to engage a similarly formed shoulder 33, which extends across the upper surface of the block 18 and is preferably formed thereon by reducing a portion of said block.

Each of the shoulders 32 and. 33 are formed on an arc of a circle, the center of which is the pivot a which connects the lever 25 to its block. Secured transversely on one of the sash-rails, usually the rail 1G, at about its middle, is an engaging-block 34, which has a perimetral flange 35 at its lowerI portion provided with openings 36 for the passage of screws 37 used for securing said block to its rail. This block or member 34 has a longitudinally extended cavity 38, and at each of its ends an opening 39 to receive a locking-bolt 40 which is located horizontally in the member 34, and has its outer end formed with a hook or turned back portion 41, as is clearly shown in Figs. 2, 4, (i and 7 of the drawings.

1n one of the sides of the block or member 34 is formed a slot 42 which extends therein a short distance longitudinally and then downwardly as at 43 (see Fig. 4), and is for the reception and operation of a short pin 44 which projects laterally from the lockingbolt 40 into said slot and serves the double purpose of acting as a stop or guide for said bolt, as well as a stop for one end of a spring 45 which is coiled around the bolt 40 and rests at its other end against the front end of the block 34 within the cavity 38 thereof. The outer portion of the block 34 is formed on its upper surface with a groove 46 for the reception or engagement of a part of the hook 41 of the locking-bolt 40, the upper portion of which hook will engage the recess`24 in the lever 25 when the latter is turned to the position shown in Figs. 3 and 7 of the drawings.

As is clearly shown in Figs. 2 and (5 the block 34 is provided at its end opposite that adjacent to the sash-rail 15 with a step 47 which will permit the hook 41 to be held at dierently retracted positions. Thatend of the block 34 opposite its end in which the recess 46 is formed is provided with a horizontally disposed plate or portion 48 which projects over the inner end of said block or that end thereof adjacent to the block 18,

and the outer edge 49 of said plate is formed on an arc of a circle with the pivot 3,0"l for the center thereof, and is dovetailed as shown to engage the dovetailed shoulder 32 on the locking-lever. The inner end of the plate 48 is downturned as at 50, and is located at a slight distance from the inner end of the block 34 and is provided with an opening 51 for the reception of the inner end of the bolt 40 when in its projected position, as shown in Fig. 4 of the drawings.

The extensible connection which unites the blocks 18 and 34 so as to permit a restricted movement of the sashes is shown in Figs. 1, 2, 3, 5 and 7 of the drawings as consisting of a series of links 52 pivotally secured together, but it will be understood that we may employ one or more of said links as may be desired. The lower one of these links is pivotally secured to the block 18 and the upper of said links, when more than one is employed, is provided with an elongated slot 53 adapted to receive the inner end of the bolt 40 when the same is in its projected position, as shown in Figs. 1, 3, 4 and 7 of the drawings. rl`hat end of the link 52 in which the slot 53 is formed is provided with a transversely disposed extension 54, which will project alongside the downturned portion of the plate 48 and will act as a guide therefor, as well as to prevent dislocation of the parts.

1f only one link 52, which may be of any suitable length, shall be employed, then the lower end thereof will. be pivotally secured to the block 18 and the-upper end thereof provided with the slot 53 and hook 54, as above set forth. As the extensible connection or connection consisting of the links 52 or a single link is adapted, when in its normal position, to lie alongside of the inner surface of the block 18 the flange 19 of said block may be provided on its inner edge and at about the middle thereof with an upward extension 55 to act as a guide for said connection and to prevent the same being moved inwardly when in its lowered position. The flange 19 of the block 18 may be provided near its end adjacent to the pivot 30a with a recess 5G to receive the lower end of the downturned portion 50 of the plate 48 on the engaging block for the locking-lever. The slot indicated by the reference numerals 42 and 43 in one side o f the block 34 may be provided with a housing 57 if desired.

1f desired, the connection uniting the blocks 18 and 34 may be detachably secured at its lower end to the block 18 so that said connection may be dispensed with.

From the foregoing and by reference to the drawings it will be understood and clearly seen that in securing the device in place on the sash-rails the blocks 18 and 34 are preferably screwed to the rails 15 ICM and 16, respectively, as shown in Figs, l and 2 of the drawings, when by projecting the bolt 40 to the position shown in saidfigures, as well as in Figs. 4 and 7, the inner end of said bolt will be extended through the slot of one of the links 52 of the extensible connection, when the same is eX- tensible, and also through the opening 51 in the downturned portion of the plate 48 which the block 34 carries. Then the parts are in the above-named positions it is apparent that either of the sashes or both thereof may be moved until restricted by the connection, thus permitting ventilation at the upper or lower portion of the window, or at both places if desired, in such a manner as to prevent the entrance of a burglar or other person.

To lock the sashes together the sash-rails 15 and 16 should be arranged flush with one another, when by lifting the spring-actuated bolt 26 on the lever 25 bv means of the button or head 30, it is apparent that said lever may be` turned on its pivot 30'd from the position shown in Fig. 1 to that shown in Figs. 3 and 7, when the shoulder 32 on the locking lever will engage the beveled edge 49 of the horizontal plate 48 on the block 34, in which position the lockinglever will be firmly held by reason of the engagement of the bolt 26 with a recess 5S formed in the upper surface of the block 34 near its outer end, and by reason of the engagement of the recess 24 in the outer end of the locking-lever with the upper portion of the hook 41 on the locking-bolt 40 which the block 34 carries.

The spring on the locking-bolt 40 will normally hold it in its projected position, or so that its inner portion will engage the opening 51 in the downturned portion 50 of the horizontal plate 48, and in engagement with the slot 53 in the connection 52, but if it is desired to disconnect the lockingbolt 40 from the connection 52 in order that the window-sashes may be moved independently of one another and without restriction the bolt 40 may be retracted and its hooked portion 41 turned so as to rest on the outer surface of the step 47, as shown by dotted lines at 59 in F ig. 6 of the drawings, in which position it is evident that the inner end of the bolt 4() will bemoved out of engagement with the connection 52 and that the pin 44 carried by the bolt 40 will engage the downturned portion 43 of the slot 42 in the side of the block 34, and will assist in preventing the bolt 40 being again projected.

' l hen the hooked portion 41 of the locking bolt 40 and the locking-lever 25 are in the positions shown in F 3 and T of the drawings, it is apparent that the lockinglever cannot be turned back to the position shown in Fig. 1 without removing the hook 41 from the recesses 24 and 46 in the lever 25 and block 34, respectively, but to permit of such movement of said lever the bolt 40 may be retracted and the hook 41 thereon turned to the position shown by dotted lines as at 60 in Figs. 3 and 6, when it is apparent that the free end of the hook will rest against the end of the block 34- ljust above the step 47 thereon, thus unlocking the lever and permitting it to be turned on its pivot.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters-Patent, is-

1. In a. window sash-lock, the combination with a block secured to a sash-rail, of a level pivoted to move horizontally on the upper surface of said block and having on its lower surface a transverse and beveled shoulder, a spring-actuated bolt located vertically on the lever near one of its ends, another block secured on another sash-rail and having a recess to receive a portion of said bolt, a horizontally disposed plate on the last-named blocr and having a curved edge to engage the shoulder on the lever, a spring-actuated bolt located in the lastnamed block and extended longitudinally therethrough, and a connection united at one of its ends to the first-named block and having at its other end means to engage the inner end of the locking-bolt on the other block.

2. In a window sash-lock, the combination with a block secured to a sash-rail, of a lever pivoted to move horizontally on the upper surface of said block and havingI on its lower surface a transverse and beveled shoulder, a spring-actuated bolt mounted vertically on said lever near its free end, another block secured on another sash-rail and having in its upper surface a recess to engage said spring-actuated bolt, a horizontally disposed plate on the last-named block and having a curved edge to engage the shoulder on the lever, a spring-actuated bolt located in the last-named block and extended longitudinally therethrough and having at its outer end a hooked portion adapted to rest against the outer end of the block in which it is located, and a connection pivotally secured at one of its ends to the first-named block and having means at its other end to engage the inner end of the lastnamed locking-bolt.

3. In a window sash-lock, the combination with a block secured to a sash-rail and having on its lower portion a perimetral flange provided at one of its edges with an upward extension, a lever pivoted to move horizontally on the upper surface of said block and having on its lower surface a transverse and beveled shoulder, a spring-actuated bolt vertically located on the lever near its free end, another block secured on another sashrail and having near one of its ends a re- Cess to engage 'said oolt, a horizontally and an opening', a Sprng-actu'ated -oolt lo- 10 disposed plate on the last-named block and cated in the last-named block to engage the having a curved edge to engage the shoulder said opening.

on the lever, said plate also hzwno a down- 5' Ward extension located at a dstznce from (IILPIIAIOQ'UIST the inner end of the block to which it is secured, a connection pvotally secured at lVtnesses: one of its ends to the rst-nmned block and CHAS. C. TILLMAN, provided near its other end with a hook I M. A. NYMAN. 

